Type-writer-bar movement.



" No. 724,773. PATENTED APR. 7, 1903.

J. ALEXANDER. I TYPE WRITER BAR 17707317112117:

' JAPPLIOATION FILED r313, 27,1902.

INVENTOHQ Jesse flk/TQlM/Ef ATT E'Y-S I0 MODEL.

WITNESSES m: wams PETERS co. PNOTO-LITHQ, WASHINGTON, u, c,

I J. ALEXANDER.

TYPE WRITER BAR MOVEMENT.

APPLICATION rum) FEB. 27, 1902.

30 MoDEL'. z SHEETS-SHEET 2 'No. 724,773; PATENTED APR. 7, 1903.

WITNESSES: IN VENTOH m w 5 L/g wz'.QVkzazzaiz-Av A rromvkrs 1 UNITEDSTATES PATENT OFFICE.

JESSE ALEXANDER, OF NEW YORK, N. Y., ASSIGNOR OF ONE-HALF TO HERMANBENKE, OF NEW YORK, N. Y.

TYPE-WRlTER-BAR MOVEMENT.

SPECIFICATION forming part of Letters Patent No. 724,773, dated April 7,1903.

To aZZ whom it may concern:

Be it known that I, JESSE ALEXANDER, a citizen of the United States, anda resident of the city of New York, borough of Manhattan, in the countyand State of New York, have invented a new and Improved Type-Writer-.Bar Movement, of which the following is a full, clear, and exactdescription.

This invention relates to improvements in type-writing machines, andparticularly in g the construction of the type-carryingbars '2 2 ofFig.1.

and the mechanism for operating the same, the object being to simplifythe construction of the parts and to so arrange them that they may bereadily adjusted, assembled, orseparated when required, this applicationbeing a division of my application for patent on type-writers filedOctober 1, 1901, Serial No. 77,184.

I will describe a type-writer-bar movement embodying my invention andthen point out the novel features in the appended claims.

Reference is to be had to the accompanying drawings, forming a part ofthis specification, in which similar characters of reference indicatecorresponding parts in allthe figures.

Figure 1 is asection on the line 1 l of Fig. 2, showing'a type-barmechanism embodying my invention. Fig. 2 is a section on the line Fig. 3is a perspective view of a portion of a type-bar employed. Fig. 4 is aperspective View showing the other portion thereof. Fig. 5 shows atype-block employed. Fig. 6 is a section showing the connection of thetype-bar members. Fig. 7 shows a blank for forming a finger-lever. Fig.8 is a side View showing the lever as formed, and Fig. 9 is an end viewthereof.

The frame of the machine comprises corner uprights or posts 50,connected at the ends and at the bottom by bars 51 and at the top bybars 52. The rear uprights or posts are connected at the bottom by across-bar 53, and arranged in the front of the frame is a front plate54. The front plate 54 at the top has a semicircular opening, and inwardof this opening is a segmental plate 55, upon which is a cushion 56, offelt or other suitable material, upon which the type-bars are de-Iebrnary 27,1902. Serial (No model.)

signed to strike upon their return movement, thus causing practically nosound upon said return of the'type-bars. The front plate 54 at its loweredge is kerfed to receive the fulcrum parts of the type-bars, thetype-bars being fulcrumed on a rod or wire 57, extended rearward of thesaidfront plate. Each typebar consists of a fulcrum-section 58' and atype supporting or hearing section 59, these sections being adj ustablyconnected together. As here shown, the section 58 is provided with aportion 60, which is turned over and extends down parallel with the bodyof said section 58, and the said body and portion 60 form the side wallsof a socket, in which the end of the type-bar section 59 is inserted andis held by means of screws 61. These screws 61 pass through openings inthe portions 58 and 60 and through slots 62 in the portion 59. By this.construction the type-bar may be readily adjusted longitudinally tocause the type to strike at the proper place over the impression-roller.The section 58 of the typebar is provided with a hook-shapedfulcrumbearing 63, designed to engage with the fulcrum-rod 57,as'clearly shown in Fig. 2, and extended downwardly and rearwardly fromthis fulcrum-bearing is an arm 64, on the end of which is a headed pin65, designed to engage with an actuating angle-lever, as will behereinafter described. The several typebars are held yield-ingly yetremovably on the rod 57 by means of a spring-pressed rod or wire 66.This wire 66 is longitudinally curved and is attached at its ends to thesprings 67, the said springs being attached to the frame of the machine.This wire or rod 66 not only serves for the purpose above described, butserves as a yielding abutment for the upward or striking movement of thetype-bars by engaging with projections 68 on the said type-bars. I

cured in any desired manner, such as by pressure or swaging or bysoldering.

- portion 75.

each type-block are the upper and lower case type 71. On the lower orouter edge of each type-bar, near its free end, is a projection or lug72. This projection or lug is designed to prevent the striking of typeof another type-bar against any type-bar that may be in printingposition, and therefore the projection or lug is located at a positionto engage between the type on a type-block. When the type-bars are intheir lowermost position, the projections or lugs 72 will rest in arecess or recesses formed in the cushion 56, as clearly indicated inFig. 2.

The finger-levers 73 are each formed of a single sheet of metal, theblank for forming the same being clearly shown in Fig. 7. At the outerend this blank has an upwardly-extended portion 74 and anupwardly-extended The portion 75 is designed to be folded against theportion 74, and then the upper ends of said portions 7* and 75 are to beturned at right angles or on a horizontal plane, after which a cap-plate76 on the portion 75 is to be turned downward, and on this plate 76 thecap 77 is to be placed, the said cap having printed thereon letters,numerals, or other characters. The general construction of thefinger-lever when formed is shown in Figs. 8 and 9. At the rear end theseveral finger-levers are fulcrumed on a rod 78, mounted on a bar 79 atthe rear side of the machine-frame. This bar 79 is provided with slitsor kerfs to receive the finger-levers, and the walls of said slits orkerfs will prevent to a greatextent any lateral play of the levers. Itwill be noted that the bearings of the levers are in the form ofnotches, so that the levers may be readily removed when desired. Thereturning-springs 80 are connected at one end to the levers and at theother end to an adjusting-screw 81. By manipulating these screws 81 itis obvious that the tension of the springs may be readily adjusted. Atthe forward ends the several finger-levers are guided in slits formed inthe lower edge of the front plate 54, and between its ends each lever isprovided with a hook-shaped bearing 82.

The type for printingaperiod, owing to the practically sharp point,isoften forced through the paper on the impression-roller 9:. To preventsuch puncturing, I provide an adjustable stop-screw 82 on the plate 54,which is in line of movement of the type-bar carrying.

other end of said spring engaging with the machine frame. The forwardlydisposed lower member of the angle-lever 83 is provided with a headedpin 91 for engaging in the bearing 2, and the upper end of theupwardly-disposed portion of the angle-lever is provided with a slot 92to receive the pin 65. The greater portion of this slot 92 has straightside walls. The upper portion, however, is curved rearward and upward,as at 83, and at the lower end'of the slot is an enlargement 94:,through which the head of the pin 65 may readily pass. By the curvedportion 93 a very quick and positive final movement is given to thetype-bar.

By the construction of the connections between the type-bar and finger-lever and anglelever it is obvious that the several parts may bereadily assembled or may be readily detached for replacement by othersshould occasion require from wear or other cause, and this, of course,without disturbing other portions of the machine.

To cause the type at all times to strike on the proper place or inproper alinement on the paper, I provide a guide just forward of theimpression-roller at and consisting of tubular members 95 96, the spacebetween the adjacent ends of which is sufficient to permit the end ofthe type-bar to pass through. These tubular members are mounted on theupper end of a post 97, attached to the front plate 54. Arranged in theinner end of each tubular member and projecting slightly outwardtherefrom is a movable bearing device, here shown as a hard-metalball98. These balls are prevented from moving too faroutward by crimpingor swaging the ends of the tubes. The balls are pressed yieldinglytoward each other by means of springs.

Having thus described my invention, I claim as new and desire to secureby Letters Patent- 1. A fulcrumed type-bar having a downward andrearward extension from its fulcrum-point, the fulcrum-bearing for saidbar opening outward, a rod engaging in the bearing, means for holdingthe bearing yielding on the rod, a headed pin on said extension, atfulcrumed angle-lever having a slot in its upper portion to receive saidpin, said slot having an enlargement through which the pin-head maypass, and a finger-lever having operative connection with theforwardly-disposed lower member of the angle-lever. I

2. In a type-writer, a type-bar having a fulcrum-bearing openingoutward, a fulcrumrod for engaging in the bearing, means for holding thebearing yieldingly on the rod, the said type-bar having a rearwardextension from its fulcrum-point, a pin on said extension, anangle-lever having an outwardlyopening fulcrum-bearing at its lower end,a fulcrum-rod for engaging in said bearing, means for yieldingly holdingthe bearing on the rod, a pin on the forwardly-disposed member of saidangle-lever, and a fin ger-lever provided with a bearing for said pin,the said bearing having an outward opening.

3. In a type-writer, a fulerumed type-bar having an inclined extensionfrom its fulcrum-point, a pin on said extension, a fingerlever, and afulcrumed angle-lever having its forwardly-disposed lower memberoperatively connected to-the finger-lever and having a slot in itsupwardly-disposed member for receiving said pin, the said slot beingcurved at its upper portion whereby a quick motion will be imparted tothe type-bar when the pin is moving in said curved portion of the slot.

